María Socorro "Coco" Martínez, maiden name María del Socorro Camero Haro, is a freelance writer and author of a memoir.

Coco was born in San Luis Potosí, in the state of San Luis Potosí, México, but grew up in Monterrey, Nuevo León, México. She worked as a teacher of grades seven through nine, as well as an Assistant Principal for a year, in a middle school in Doctor Arroyo, Nuevo León, México, from 1958 to 1962. She later taught in middle schools in Monterrey, Nuevo León, México, from 1962 to 1966.

She then married Martín H. Martínez, a US Air Force member, and moved to the United States. She was a stay-at-home mom to her three children until she returned to work as a bilingual assistant at elementary schools in North East ISD in San Antonio, Texas, from 1985 to 2004.

Co-founder of the Spanish for Children program, National Autonomous University of México (Universidad Nacional Autónoma de México, UNAM), San Antonio, Texas, she led double summer sessions from 1988 to 1995.

Since 2002, she has worked part time for Tri-Lin Integrated Services in San Antonio, Texas, as a Spanish consultant and freelance writer of standardized test passages in Spanish for elementary students.

Living in a Crystal Box is her memoir describing her experiences as a young city girl facing the hardships and taboos of working as a teacher in Doctor Arroyo, a rural Mexican town, in the 1950s.